List of some of the national organisations, groups, and aircraft manufacturers represented at Hood Aerodrome:

Aircraft Owners and Pilots Association, generally referred to as ‘AOPA’.
Representing Aircraft owners in New Zealand., with a focus on both advocacy and social events for pilots and aircraft owners.http://www.aopa.org.nz/

Sport Aircraft Association NZ (Inc), generally referred to as ‘SAA’.
This organisation is the successor to AACA (Amateur Aircraft Constructors Association) launched back in 1953, the Homebuilders’ club. Homebuilders have been strong at Hood Aerodrome in the past and there are still few of their aircraft operating here.http://www.saa.org.nz/

Recreational Aircraft Association of New Zealand, generally referred to as ‘RAANZ’.
RAANZ are a nation wide organisation authorised by CAA to manager microlight pilot training and licencing, and aircraft maintenance.http://raanz.org.nz/

Sport Aircraft Corp. Ltd, generally referred to as ‘SAC’.
Similar to RAANZ, quite favoured by many people carrying maintenance approvals. SAC are also a CAA delegated authority.http://www.sportflying.co.nz/